公开(公告)号：US07283694B2

公开(公告)日：2007-10-16

申请号：US10267331

申请日：2002-10-08

Applicant: David F. Welch ,  Vincent G. Dominic ,  Fred A. Kish, Jr. ,  Mark J. Missey ,  Radhakrishnan L. Nagarajan ,  Atul Mathur ,  Frank H. Peters ,  Robert B. Taylor ,  Matthew L. Mitchell ,  Alan C. Nilsson ,  Stephen G. Grubb ,  Richard P. Schneider ,  Charles H. Joyner ,  Jonas Webjorn ,  Drew D. Perkins

Inventor： David F. Welch ,  Vincent G. Dominic ,  Fred A. Kish, Jr. ,  Mark J. Missey ,  Radhakrishnan L. Nagarajan ,  Atul Mathur ,  Frank H. Peters ,  Robert B. Taylor ,  Matthew L. Mitchell ,  Alan C. Nilsson ,  Stephen G. Grubb ,  Richard P. Schneider ,  Charles H. Joyner ,  Jonas Webjorn ,  Drew D. Perkins

IPC: G02B6/12

CPC classification number: G02B6/12011 ,  B82Y20/00 ,  G01R31/31728 ,  G01R31/318511 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/12019 ,  G02B6/12021 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/12033 ,  G02B6/131 ,  G02B6/136 ,  G02B6/4204 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  G02F2203/69 ,  H01L31/125 ,  H01S5/0014 ,  H01S5/0085 ,  H01S5/02248 ,  H01S5/026 ,  H01S5/0262 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/06832 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/3408 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H04B10/2914 ,  H04B10/50 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0258 ,  H04J14/0265 ,  H04J14/0276 ,  H04J14/0282

Abstract: A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.

Abstract translation: 一种包括调制源阵列的光子集成电路（PIC）芯片，每个调制源提供在不同于其它调制源的信道波长的信道波长处的调制信号输出，以及具有光耦合到接收到的所有信号输出的输入的波长选择性组合器 并从芯片提供输出波导上的组合输出信号。 调制源，组合器和输出波导均集成在同一芯片上。

公开(公告)号：US20070122148A1

公开(公告)日：2007-05-31

申请号：US11463587

申请日：2006-08-09

Applicant: David Welch ,  Ting-Kuang Chiang ,  Vincent Dominic ,  Fred Kish ,  Radhakrishnan Nagarajan

Inventor： David Welch ,  Ting-Kuang Chiang ,  Vincent Dominic ,  Fred Kish ,  Radhakrishnan Nagarajan

IPC: H04B10/08

CPC classification number: H04B10/2914 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/12011 ,  G02B6/12019 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/1203 ,  G02B6/12033 ,  G02B6/4249 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  H01S5/026 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/0425 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/101 ,  H01S5/1014 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/183 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/2224 ,  H01S5/227 ,  H01S5/3404 ,  H01S5/3408 ,  H01S5/34306 ,  H01S5/4025 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H01S5/5072 ,  H04B10/25 ,  H04B10/50 ,  H04B10/675 ,  H04J14/02

Abstract: A method is disclosed for monitoring and controlling the bit error rate (BER) in an optical communication network where an optical receiver in the optical transmission network. The method includes the steps of decombining a combined channel signal received from the network and then monitoring a real time bit error rate (BER) of a decombined channel signal. The determined BER is then communicated, such as through an optical service channel (OSC) to an optical transmitter source that is the source of origin of the channel signal. Based upon the determined BER, the chirp of a channel signal modulator at the optical transmitter source that generated the monitored channel signal is adjusted by, for example, adjusting its bias. The same channel signal received at the optical receiver can be monitored again to determine if an acceptable level for the BER has been achieved by the previous chirp adjustment.

Abstract translation: 公开了一种用于监视和控制在光传输网络中的光接收机的光通信网络中的误码率（BER）的方法。 该方法包括以下步骤：将从网络接收的组合信道信号分解，然后监视解复用信道信号的实时误码率（BER）。 所确定的BER然后例如通过光学服务信道（OSC）传送到作为信道信号的源的源的光发射机源。 基于确定的BER，通过例如调整其偏置来调整产生监视的信道信号的光发射机源处的信道信号调制器的啁啾。 可以再次监视在光接收机处接收到的相同信道信号，以确定是否通过先前的啁啾调整实现了BER的可接受电平。

公开(公告)号：US20070092177A1

公开(公告)日：2007-04-26

申请号：US11427624

申请日：2006-06-29

Applicant: Alan Nilsson ,  Robert Smith ,  Yishai Kagan ,  Paul Freeman

Inventor： Alan Nilsson ,  Robert Smith ,  Yishai Kagan ,  Paul Freeman

IPC: G02B6/12

CPC classification number: H01S5/0687 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12019 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/12033 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  H01S5/0085 ,  H01S5/024 ,  H01S5/02415 ,  H01S5/02453 ,  H01S5/02461 ,  H01S5/02476 ,  H01S5/026 ,  H01S5/0261 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/0425 ,  H01S5/0612 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/2214 ,  H01S5/2224 ,  H01S5/227 ,  H01S5/2272 ,  H01S5/3408 ,  H01S5/34306 ,  H01S5/4025 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H04B10/25 ,  H04B10/2914 ,  H04B10/50 ,  H04B10/572 ,  H04J14/02

Abstract: A transmissive active channel element is provided in each signal channel of a monolithic multi-channel TxPIC where each channel also includes a modulated source. The active channel element functions both as a power control element for both monitoring and regulating the output channel signal level of each signal channel and as a modulator for channel wavelength tagging or labeling to provide for wavelength locking the modulated sources. The power regulating function is also employed to control the channel signal power outputs of each channel to be uniform across the channel signal array. All of these functions are carried out by a feedback loop utilizing digital signal processing.

Abstract translation: 在单片多通道TxPIC的每个信号通道中提供透射有源通道元件，其中每个通道还包括调制源。 有源通道元件既用作监视和调节每个信号通道的输出通道信号电平的功率控制元件，也用作用于通道波长标签或标签的调制器，以提供波长锁定调制源。 功率调节功能也用于控制每个通道的通道信号功率输出在通道信号阵列上是均匀的。 所有这些功能都通过利用数字信号处理的反馈回路进行。

公开(公告)号：US07116851B2

公开(公告)日：2006-10-03

申请号：US10267304

申请日：2002-10-08

Applicant: David F. Welch ,  Radhakrishnan L. Nagarajan ,  Fred A. Kish, Jr. ,  Mark J. Missey ,  Vincent G. Dominic ,  Atul Mathur ,  Frank H. Peters ,  Charles H. Joyner ,  Stephen G. Grubb

Inventor： David F. Welch ,  Radhakrishnan L. Nagarajan ,  Fred A. Kish, Jr. ,  Mark J. Missey ,  Vincent G. Dominic ,  Atul Mathur ,  Frank H. Peters ,  Charles H. Joyner ,  Stephen G. Grubb

IPC: G02B6/12 ,  G02B6/34

CPC classification number: H04B10/2914 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/12011 ,  G02B6/12019 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/1203 ,  G02B6/12033 ,  G02B6/4249 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  H01S5/026 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/0425 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/101 ,  H01S5/1014 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/183 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/2224 ,  H01S5/227 ,  H01S5/3404 ,  H01S5/3408 ,  H01S5/34306 ,  H01S5/4025 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H01S5/5072 ,  H04B10/25 ,  H04B10/50 ,  H04B10/675 ,  H04J14/02

Abstract: Photonic integrated circuits (PICs), also referred to as opto-electronic integrated circuits (OEICs), and more particularly to a PIC in the form of an optical receiver PIC or RxPIC chip and an optical transmitter PIC (TxPIC) are employed in an optical transport network. Integrated on the RxPIC chip, starting at the input end which is coupled to receive multiplexed optical data signals from an optical transport network is an optical amplifier, an optical demultiplexer, and a plurality of on-chip photodiodes (PDs) each to receive a demultiplexed data signal from the AWG DEMUX for optical-to-electrical signal conversion. The optical input amplifier may be an on-chip gain clamped semiconductor optical amplifier (GC-SOA) or an off-chip fiber amplifier. The optical input amplifier may be optional if the channel signal demultiplexer provides for minimal insertion loss which is optimum with a properly designed arrayed waveguide grating (AWG) demultiplexer.

Abstract translation: 光子集成电路（PIC）也称为光电集成电路（OEIC），更具体地说，涉及一种光接收器PIC或RxP​​IC芯片和光发射器PIC（TxPIC）形式的PIC，其在光学 运输网络。 集成在RxPIC芯片上的起始于耦合到从光传输网络接收复用光数据信号的输入端是光放大器，光解复用器和多个片上光电二极管（PD），每个片上光电二极管（PD）各自接收解复用 来自AWG DEMUX的数据信号用于光电信号转换。 光输入放大器可以是片上增益钳位半导体光放大器（GC-SOA）或片外光纤放大器。 如果信道信号解复用器提供最小的插入损耗，那么光输入放大器可以是可选的，这对于适当设计的阵列波导光栅（AWG）解复用器是最佳的。

公开(公告)号：US07113667B2

公开(公告)日：2006-09-26

申请号：US11135705

申请日：2005-05-24

Applicant: David F. Welch ,  Fred A. Kish, Jr. ,  Vincent G. Dominic ,  Ting-Kuang Chiang

Inventor： David F. Welch ,  Fred A. Kish, Jr. ,  Vincent G. Dominic ,  Ting-Kuang Chiang

IPC: G02B6/28 ,  G02B6/00 ,  H04B10/12

CPC classification number: H04B10/2914 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/12011 ,  G02B6/12019 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/1203 ,  G02B6/12033 ,  G02B6/4249 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  H01S5/026 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/0425 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/101 ,  H01S5/1014 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/183 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/2224 ,  H01S5/227 ,  H01S5/3404 ,  H01S5/3408 ,  H01S5/34306 ,  H01S5/4025 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H01S5/5072 ,  H04B10/25 ,  H04B10/50 ,  H04B10/675 ,  H04J14/02

Abstract: A FEC enhanced system for an optical transport or communication network that includes an optical transmitter that has a transmitter photonic integrated circuit (TxPIC) chip having an integrated circuit comprising an array of modulated sources providing a plurality of optical modulated channel signals comprising digital bit data streams where each signal is at a wavelength on a wavelength grid. The modulated channel signal outputs from the modulated sources are provided to an integrated multiplexer in the circuit to provide a WDM output signal at a circuit output. At least one FEC encoder is coupled to the modulated sources to encode error-correcting code containing redundant information of the data bit stream for each channel signal. An optical receiver in the network includes a receiver photonic integrated circuit (RxPIC) chip having an integrated circuit comprising an input to a demultiplexer and an array of photodetectors coupled to outputs of the demultiplexer. At least one FEC decoder is coupled to the photodetectors to provide decoded data relating to the bit error rate (BER). Information relating to the BER is provided by a controller at the optical receiver to provide real-time information to the optical transmitter relating to optical characteristics of the modulated sources based upon the BER data.

Abstract translation: 一种用于光传输或通信网络的FEC增强系统，其包括具有发射机光子集成电路（TxPIC）芯片的光发射机，该发射器光子集成电路（TxPIC）芯片具有集成电路，该集成电路包括调制源阵列，提供多个光调制信道信号，包括数字比特数据流 其中每个信号处于波长网格上的波长。 来自调制源的调制信道信号输出被提供给电路中的集成多路复用器，以在电路输出端提供WDM输出信号。 至少一个FEC编码器耦合到调制源以对每个信道信号编码包含数据比特流的冗余信息的纠错码。 网络中的光接收器包括具有集成电路的接收器光子集成电路（RxPIC）芯片，该集成电路包括到解复用器的输入和耦合到解复用器的输出的光电检测器阵列。 至少一个FEC解码器耦合到光电检测器以提供与误码率（BER）有关的解码数据。 与BER相关的信息由光接收器处的控制器提供，以基于BER数据向与光发射机相关的调制源的光学特性提供实时信息。

公开(公告)号：US07043109B2

公开(公告)日：2006-05-09

申请号：US11242518

申请日：2005-10-03

Applicant: Fred A. Kish, Jr. ,  Charles H. Joyner ,  Mark J. Missey ,  Frank H. Peters ,  Radhakrishnan L. Nagarajan ,  Richard P. Schneider

Inventor： Fred A. Kish, Jr. ,  Charles H. Joyner ,  Mark J. Missey ,  Frank H. Peters ,  Radhakrishnan L. Nagarajan ,  Richard P. Schneider

IPC: G02B6/12 ,  H01L21/66 ,  G01N21/00

CPC classification number: G02B6/12011 ,  B82Y20/00 ,  G01R31/31728 ,  G01R31/318511 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/12019 ,  G02B6/12021 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/12033 ,  G02B6/131 ,  G02B6/136 ,  G02B6/4204 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  G02F2203/69 ,  H01L31/125 ,  H01S5/0014 ,  H01S5/0085 ,  H01S5/02248 ,  H01S5/026 ,  H01S5/0262 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/06832 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/3408 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H04B10/2914 ,  H04B10/50 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0258 ,  H04J14/0265 ,  H04J14/0276 ,  H04J14/0282

Abstract: A method of in-wafer testing is provided for a monolithic photonic integrated circuit (PIC) formed in a semiconductor wafer where each such in-wafer circuit comprises two or more integrated electro-optic components, one of each in tandem forming a signal channel in the circuit. The method includes the provision of a first integrated photodetector at a rear end of each signal channel and a second integrated photodetector at forward end of each signal channel. Then, the testing is accomplished, first, by sequentially operating a first of a selected channel electro-optic component in a selected circuit to monitor light output from a channel via its first corresponding channel photodetector and adjusting its operating characteristics by detecting that channel electro-optic component output via its second corresponding channel photodetector to provide first calibration data. Second, by sequentially operating a second of a selected channel electro-optic component in the selected circuit to monitor signal output from the second selected channel electro-optic component via its second corresponding channel photodetector and adjusting its operating characteristics by detecting that channel electro-optic component output via its second corresponding channel photodetector to provide second calibration data. The first and second calibration data for each circuit channel for the selected circuit are then stored for future reference.

公开(公告)号：US06985648B2

公开(公告)日：2006-01-10

申请号：US10988067

申请日：2004-11-12

Applicant: Fred A. Kish, Jr. ,  Mark J. Missey ,  Radhakrishnan L. Nagarajan ,  Frank H. Peters ,  Richard P. Schneider ,  Charles H. Joyner

Inventor： Fred A. Kish, Jr. ,  Mark J. Missey ,  Radhakrishnan L. Nagarajan ,  Frank H. Peters ,  Richard P. Schneider ,  Charles H. Joyner

IPC: G02B6/12 ,  H04B10/08

CPC classification number: G02B6/12011 ,  B82Y20/00 ,  G01R31/31728 ,  G01R31/318511 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/12019 ,  G02B6/12021 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/12033 ,  G02B6/131 ,  G02B6/136 ,  G02B6/4204 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  G02F2203/69 ,  H01L31/125 ,  H01S5/0014 ,  H01S5/0085 ,  H01S5/02248 ,  H01S5/026 ,  H01S5/0262 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/06832 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/3408 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H04B10/2914 ,  H04B10/50 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0258 ,  H04J14/0265 ,  H04J14/0276 ,  H04J14/0282

Abstract: A method of in-wafer testing is provided for a monolithic photonic integrated circuit (PIC) formed in a semiconductor wafer where each such in-wafer circuit comprises two or more integrated electro-optic components, one of each in tandem forming a signal channel in the circuit. The method includes the provision of a first integrated photodetector at a rear end of each signal channel and a second integrated photodetector at forward end of each signal channel. Then, the testing is accomplished, first, by sequentially operating a first of a selected channel electro-optic component in a selected circuit to monitor light output from a channel via its first corresponding channel photodetector and adjusting its operating characteristics by detecting that channel electro-optic component output via its second corresponding channel photodetector to provide first calibration data. Second, by sequentially operating a second of a selected channel electro-optic component in the selected circuit to monitor signal output from the second selected channel electro-optic component via its second corresponding channel photodetector and adjusting its operating characteristics by detecting that channel electro-optic component output via its second corresponding channel photodetector to provide second calibration data. The first and second calibration data for each circuit channel for the selected circuit are then stored for future reference.

Abstract translation: 提供了一种晶片内测试方法，用于形成在半导体晶片中的单片光子集成电路（PIC），其中每个这样的晶片内电路包括两个或更多个集成的电光部件，其中每一个串联形成信号通道 电路。 该方法包括在每个信号通道的后端提供第一集成光电检测器，并在每个信号通道的前端提供第二集成光电检测器。 然后，首先，通过顺序地操作所选择的电路中的所选择的通道电光部件中的第一个，以经由其第一对应的通道光电检测器监视从通道输出的光，并通过检测该通道电光元件来调整其工作特性， 通过其第二对应通道光电检测器输出光学部件以提供第一校准数据。 其次，通过在所选择的电路中顺序地操作所选择的通道电光部件中的第二个，以通过其第二对应的通道光电检测器监测从第二选定的通道电光部件输出的信号，并通过检测该通道电光 通过其第二对应通道光电检测器输出分量，以提供第二校准数据。 然后存储用于所选电路的每个电路通道的第一和第二校准数据以供将来参考。

公开(公告)号：US20050286909A1

公开(公告)日：2005-12-29

申请号：US11205798

申请日：2005-08-17

Applicant: Fred Kish ,  Charles Joyner ,  David Welch ,  Robert Taylor ,  Alan Nilsson

Inventor： Fred Kish ,  Charles Joyner ,  David Welch ,  Robert Taylor ,  Alan Nilsson

IPC: G02B6/12 ,  G02B6/34 ,  G02F1/017 ,  H01S3/10 ,  H01S3/13 ,  H01S5/00 ,  H01S5/024 ,  H01S5/026 ,  H01S5/06 ,  H01S5/0625 ,  H01S5/0683 ,  H01S5/12 ,  H01S5/20 ,  H01S5/22 ,  H01S5/227 ,  H01S5/34 ,  H01S5/40 ,  H01S5/50 ,  H04B10/04 ,  H04B10/12 ,  H04B10/145 ,  H04B10/17 ,  H04J14/02

CPC classification number: G02B6/12033 ,  B82Y20/00 ,  G02B6/02204 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/12019 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/124 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  H01S5/0085 ,  H01S5/024 ,  H01S5/02415 ,  H01S5/02453 ,  H01S5/02461 ,  H01S5/02476 ,  H01S5/026 ,  H01S5/0261 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/0425 ,  H01S5/0612 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/0687 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/2214 ,  H01S5/2224 ,  H01S5/227 ,  H01S5/2272 ,  H01S5/2275 ,  H01S5/3408 ,  H01S5/34306 ,  H01S5/4025 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H04B10/2914 ,  H04B10/50 ,  H04B10/506 ,  H04B10/572 ,  H04J14/02

Abstract: An optical transmitter comprises a monolithic transmitter photonic integrated circuit (TxPIC) chip that includes an array of modulated sources formed on the PIC chip and having different operating wavelengths approximating a standardized wavelength grid and providing signal outputs of different wavelengths. A wavelength selective combiner is formed on the PIC chip having a wavelength grid passband response approximating the wavelength grid of the standardized wavelength grid. The signal outputs of the modulated sources optically coupled to inputs of the wavelength selective combiner to produce a combined signal output from the combiner. A first wavelength tuning element coupled to each of the modulated sources and a second wavelength tuning element coupled to the wavelength selective combiner. A wavelength monitoring unit is coupled to the wavelength selective combiner to sample the combined signal output. A wavelength control system coupled to the first and second wavelength tuning elements and to said wavelength monitoring unit to receive the sampled combined signal output. The wavelength control system adjusts the respective wavelengths of operation of the modulated sources to approximate or to be chirped to the standardized wavelength grid and for adjusting the optical combiner wavelength grid passband response to approximate the standardized wavelength grid.

Abstract translation: 光发射机包括单片发射机光子集成电路（TxPIC）芯片，其包括形成在PIC芯片上的调制源的阵列，并且具有接近标准化波长网格并提供不同波长的信号输出的不同工作波长。 在具有近似于标准化波长网格的波长网格的波长网格通带响应的PIC芯片上形成波长选择性组合器。 调制源的信号输出光耦合到波长选择组合器的输入，以产生从组合器输出的组合信号。 耦合到每个调制源的第一波长调谐元件和耦合到波长选择组合器的第二波长调谐元件。 波长监测单元耦合到波长选择组合器以对组合的信号输出进行采样。 波长控制系统耦合到第一和第二波长调谐元件以及所述波长监视单元以接收采样的组合信号输出。 波长控制系统调整调制源的各个波长的波长近似于或被啁啾到标准化波长网格，并且用于调整光合并波长网格通带响应以近似标准化的波长网格。

公开(公告)号：US06970279B2

公开(公告)日：2005-11-29

申请号：US10698877

申请日：2003-10-30

Applicant: John S. Ahearn ,  Mani Sundaram ,  Axel Reisinger

Inventor： John S. Ahearn ,  Mani Sundaram ,  Axel Reisinger

IPC: G02B6/35 ,  G02F1/01 ,  G02F1/017 ,  G02F1/29 ,  G02F1/295 ,  H01S3/00 ,  H01S5/00 ,  H01S5/40

CPC classification number: B82Y20/00 ,  G02F1/017 ,  G02F1/01725 ,  G02F1/292 ,  G02F1/2955 ,  G02F2001/01758 ,  G02F2001/01775 ,  G02F2201/30 ,  G02F2201/305 ,  G02F2202/101 ,  G02F2203/50 ,  H01S3/005 ,  H01S5/005 ,  H01S5/4075

Abstract: The present invention relates to an optical modulator array that uses stepped-well continuously tunable quantum well infrared modulators in order to accomplish electronic beam modulating. The present invention involves a coherent optical beam modulating device to steer an optical beam comprising: an optical modulator array, where said optical modulator array includes a stepped quantum well doped with electrons, wherein the modulator array affects operates as at least one of a phase modulator and a light intensity modulator base upon a voltage bias applied across the modulator array. The continuous tunable quantum well modulator includes asymmetry of the unit cell that allows transitions from the ground state to the second excited state that are normally forbidden in symmetrical quantum well infrared photodetectors.

Abstract translation: 本发明涉及一种使用阶梯式井连续可调量子阱红外调制器以实现电子束调制的光调制器阵列。 本发明涉及一种用于转向光束的相干光束调制装置，包括：光调制器阵列，其中所述光调制器阵列包括掺杂有电子的阶梯量子阱，其中所述调制器阵列影响作为相位调制器 以及基于施加在调制器阵列上的电压偏置的光强度调制器。 连续可调量子阱调制器包括允许在对称量子阱红外光电探测器中通常被禁止的从基态到第二激发态的跃迁的单位电池的不对称性。

公开(公告)号：US20050207696A1

公开(公告)日：2005-09-22

申请号：US11124483

申请日：2005-05-05

Applicant: David Welch ,  Radhakrishnan Nagarajan ,  Fred Kish ,  Mark Missey ,  Vincent Dominic ,  Atul Mathur ,  Frank Peters ,  Charles Joyner ,  Richard Schneider ,  Ting-Kuang Chiang

Inventor： David Welch ,  Radhakrishnan Nagarajan ,  Fred Kish ,  Mark Missey ,  Vincent Dominic ,  Atul Mathur ,  Frank Peters ,  Charles Joyner ,  Richard Schneider ,  Ting-Kuang Chiang

IPC: G02B6/12 ,  G02B6/34 ,  G02F1/017 ,  H01S5/026 ,  H01S5/0625 ,  H01S5/0683 ,  H01S5/12 ,  H01S5/20 ,  H01S5/22 ,  H01S5/34 ,  H01S5/40 ,  H01S5/50 ,  H04B10/12 ,  H04B10/145 ,  H04B10/158 ,  H04B10/17 ,  H04J14/02

CPC classification number: H04B10/2914 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/12011 ,  G02B6/12019 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/1203 ,  G02B6/12033 ,  G02B6/4249 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  H01S5/026 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/0425 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/101 ,  H01S5/1014 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/183 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/2224 ,  H01S5/227 ,  H01S5/3404 ,  H01S5/3408 ,  H01S5/34306 ,  H01S5/4025 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H01S5/5072 ,  H04B10/25 ,  H04B10/50 ,  H04B10/675 ,  H04J14/02

Abstract: An optical-to-electrical-to-optical converter comprises a monolithic receiver photonic integrated circuit (RxPIC) InP-based chip comprising an optical waveguide formed in the chip from a chip input to receive a first multiplexed channel signal from an optical link and provide them to an arrayed waveguide grating (AWG) which demultiplexes the multiplexed channel signals and provides a plurality of electrical channel signals to an electronic regenerator. The regenerator regenerates the electrical channel signals to an original signal waveform and provides the reformed electrical signals to a monolithic transmitter photonic integrated circuit (TxPIC) InP-based chip having an array of modulated sources formed in the chip that are coupled as inputs to an arrayed waveguide grating (AWG). The TxPIC modulates the reformed electrical signals to form a plurality of optical channel sign which are combined to form a second first multiplexed channel signal for transmission on an optical link.

Abstract translation: 光 - 电 - 光转换器包括单芯片接收机光子集成电路（RxPIC）基于InP的芯片，其包括从芯片输入端形成在芯片中的光波导，以接收来自光链路的第一复用信道信号，并提供 它们到阵列波导光栅（AWG），其将多路复用的信道信号解复用并向电子再生器提供多个电通道信号。 再生器将电通道信号再生成原始信号波形，并将重整的电信号提供给单片发射器光子集成电路（TxPIC）InP基芯片，该芯片具有在芯片中形成的调制源阵列，其作为输入耦合到阵列 波导光栅（AWG）。 TxPIC调制经重整的电信号以形成多个光信道符号，其被组合以形成用于在光链路上传输的第二第一复用信道信号。